Combined mouth mirror and lamp.



PATBNTED APR. 2, 1907.

I.. H. CRAWFORD. COMBINED MOUTH MIRROR AN D LAMP.

APPLICATION FILED APR. 25. 19

UNrrED sn/raps PATENT orrron LYTRR H.' CRAWFORD, or NEW YoRx, N. Y.

. COMBINED MOUTH MIRROR AND LAMP.`

Patented April 2, 1907.

Application filed April 25. 1,906. Serial lilo.. 313,585.

clare the following to be a'full, clear, and ex-` act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates generally to dental appliances, and particularly to a combined dental mouth mirror and lamp; and it has for its object to provide a simple, durable, and comparatively inexpensive device embodying on one handle a mouth mirror and a lamp, whereby the accumulation of moisture from the breath of the patient on the mirror throughout the several views.

is prevented and the dentist is enabled to immediately illuminate the mouth for the purpose of making a thorough examination of the teeth and gums on dark or cloudy days and at night preparatory to treating the same; and it consists in the parts and combinations of partshereinafter described and claimed.

In the accompanying drawings, forming a part of this specification, Figure 1 is a longitudinal section through my invention. Fig.

2 .is a side elevation of the same with the sliding collar for making and breaking the lampfcircuit removed. Fig., 3 is a side elevation of the completed device. Fig. 4 is a fragmentary detail view of a part of the handle. Fig. 5 is an enlarged detail vertical section through the 'lamp-casing. L

Similar letters refer to similar parts Referring to the drawings, A representsa hard-rubber or gutta-percha handle, preferl ably tapered in shape and having its ends re-` l duced and screw-.threadedl The handle is formed tubular or with a central longitudinal opening a for the passage of the twisted iexible cords or wires B, which lead the current tothe lamp, as will be described.

A metal cap C, perforated to correspond to the opening a in the handle, is screwed onto the enlarged or butt end of the handle, and a tubular metal extension or neck Dis screwed onto the smaller end of the handle, said neck form a half-spherical socket b, which, with the. similarly formed but smaller ball c, formed by,a sliding collar its free end cupped or expanded to.

at the end of a neck d, projecting from the rim of the mirror and lamp casing E, forms a ball-and-socket joint between said casing and thehandle, whereby the former may be turned and tilted or adjusted to any-desired angle. Y

' The socket' b is split or divided,as at c, to enable the ball c to be readily inserted therein, and botlr the neck D and the neck d are tubular to correspond to and form a continuation of the opening in the handle. p

The casingE is annular in form and receives on one 'side amirror F, and on the opposite side a lens G is framed. The mirror and the lens aresecured in the rim-casing in any desired or preferred manner.

Within the casing the insulating-blocks f are secured, one at each side of the point where the neck d opens into the casing, and to these blocks are secured the brass plates g by the screws h, to which the conductorwires B B Aare connected. Between the lates g a circular or annular shaped flat amp or bulb Lis supported by the wires 11, which are supported b said plates, and between said wires 'i' the lament j is arranged. One of the current lead-wires B isl connected to one ofthe screws hwithin the casing and the other tothe contactscrew 7c in the recess H, formed in the handle'A, and' a conductor-wire B connects the otherfs'crew h to. the screw l' in said recess.

A brass -contact-spring mis secured within the recess H and isfbent'so as to lie within the path of a screw or pin n.,whch is carried I, arranged on thehandle A in order to make and break the 1a'mp-cir cuit. The lcollar I also carries -a screw o, which extends into a groove p,forn`1ed in the handle, in orderto linut the movementof the collar on the handle and prevents its accidental removal or displacement. l

Thus it will be observed that I provide in one instrument 'or tool means for reiiecting the gums and teeth, and -that the .mirror is kept dry or clear of moisture from the breath of the patient by the heat Vgenerated by the lamp, and that the latter enables the dentist to make a thorou h inspection of the mouth on dark and cloudy days and at night without ,recourse to awkward and cumbersome means for focusing the light, and that the casing containing said mirror and lamp may be readily adjusted to any desired angle or position.

IIO

y ters Patent, s-

.adjustably mounted on said handle, and means for making and breaking justably connectedL to said handle, a mirror mountedon said casing, a lens mounted opposite said mirror, a hat electric lamp arranged between said mirror and lens, and dentaluse comprising a casing provided with l means carried by said handle for making and illuminating and reflecting mediums mountl breaking the lamp-circuited universally adjustable on a handle. l 5. A combined mouth mirror and lamp for 2. A combined mouth mirror and lamp for l dental use comprising ahandle, a casing condental use comprising a handle, a mirror, and nected by a universal jointto said handle, a an electric lamp said mirror and lamp being mirror mounted on said casing, a lens V mounted opposite said lamp supported within Having thus described my invention, what claim as new, and desire to secure by Letthe lamp-cirl cuit carried by said handle. Il 3. A combined mouth mirror and lamp y comprising a handle,l a casing ad justably 5 mounted on said handle, a inirror mounted p on said casing, a lens mounted opposite said l mirror, and a flat electric lamp arrangedbe` I tween said mirror and lens. 4. A combined mouth mirror and lamp for f dental use comprising a handle, a casing adl said casing, consaid lamp, and a make-and-break collar carried by said handle.

In testimony whereof I alix my signature 1n presence of two witnesses.

LYTER ll. CRAWFORD. Witnesses:

A. MEYERS,

GEO. S RUssELIL.

mirror, an electric ductor-wires leading through said handle' to 

